Patents by Inventor Thibault Chandanson
Thibault Chandanson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11937861Abstract: Devices and methods for bending or cutting implants are disclosed herein. In some embodiments, an instrument can include a rotatable drive shaft that urges first and second portions of a modular bending or cutting template toward one another to bend or cut an implant disposed between the template portions. A linkage assembly can be included to provide a mechanical advantage in urging the template portions toward one another. In some embodiments, an instrument can include a rotatable drive shaft that, depending on direction of rotation, pushes or pulls a first modular template portion with respect to a second modular template portion to bend an implant disposed between the template portions in one direction or another direction. In some embodiments, an instrument can include a worm drive that rotates a cutting wheel with respect to a cutting plate to cut an implant inserted through openings formed in the cutting wheel and the cutting plate.Type: GrantFiled: May 14, 2021Date of Patent: March 26, 2024Assignee: MEDOS INTERNATIONAL SÀRLInventors: Renaud Rouge, Henri Defossez, Thibault Chandanson, Joseph Caulfield, Daniel Lyness, Zoher Bootwala, Michael O'Neil
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Publication number: 20240024000Abstract: Devices and methods for bending or cutting implants are disclosed herein. In some embodiments, an instrument can convert a rotational input force (e.g., supplied by a powered driver tool) into movement of a first rod holder with respect to a second rod holder. Such movement can form a bend in a rod or other implant held by the first and second rod holders. Various mechanisms for converting this movement are disclosed, such as a worm drive mechanism and a conical gear mechanism, as are various types of rod holders, including orbiting rollers, lid-type rod holders, fixed and pivoting half-pipe rod holders, and full-pipe rod holders. In some embodiments, the instrument can also be used for cutting, for example by rotating a cutting wheel with respect to a cutting plate to cut a rod or other implant inserted through openings formed in the cutting wheel and the cutting plate.Type: ApplicationFiled: September 30, 2023Publication date: January 25, 2024Inventors: Renaud Rouge, Jakub Galkowski, Thibault Chandanson
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Patent number: 11786276Abstract: Devices and methods for bending or cutting implants are disclosed herein. In some embodiments, an instrument can convert a rotational input force (e.g., supplied by a powered driver tool) into movement of a first rod holder with respect to a second rod holder. Such movement can form a bend in a rod or other implant held by the first and second rod holders. Various mechanisms for converting this movement are disclosed, such as a worm drive mechanism and a conical gear mechanism, as are various types of rod holders, including orbiting rollers, lid-type rod holders, fixed and pivoting half-pipe rod holders, and full-pipe rod holders. In some embodiments, the instrument can also be used for cutting, for example by rotating a cutting wheel with respect to a cutting plate to cut a rod or other implant inserted through openings formed in the cutting wheel and the cutting plate.Type: GrantFiled: June 30, 2022Date of Patent: October 17, 2023Assignee: Medos International SarlInventors: Renaud Rouge, Jakub Galkowski, Thibault Chandanson
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Publication number: 20230095197Abstract: Adapters for surgical drilling systems, and methods of use, are provided for performing surgical procedures, such as surgical drilling into bony structures, while guided by a conductivity sensing system. The adapters may be configured to be coupled to a surgical drilling tool such as a conventional surgical drill and a drill bit having conductivity sensing capabilities, or a surgical hand tool having conductivity sensing capabilities. The adapters further include a controller configured to receive one or more signal indicative of measured electrical conductivity and/or penetration depth measurement, detect a condition associated with a change of measured electrical conductivity based on the signal, and arrest advancement of the surgical drilling tool responsive to detection of the condition.Type: ApplicationFiled: September 27, 2022Publication date: March 30, 2023Applicant: SpineGuardInventors: Thibault CHANDANSON, Stephane BETTE, Maurice BOURLION, Christopher RACZEK, Francois TEYSSERE
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Publication number: 20220361896Abstract: A medical device for penetrating a bone structure including a processing unit having a transfer function that associates an electrical conductivity value S with a depth value d, wherein the processing unit is configured to detect a threshold selected from amongst an absolute threshold, a relative threshold and a critical gradient, and to emit a warning signal and/or control signal responsive to detection of the threshold.Type: ApplicationFiled: May 2, 2022Publication date: November 17, 2022Applicants: SpineGuard, Sorbonne Universite, Centre National de la Recherche Scientifique - CNRS, INSERM (Institut National de la Sante et de la Recherche Medicale)Inventors: Stephane BETTE, Jimmy DA SILVA, Thibault CHANDANSON, Guillaume MOREL, Maurice BOURLION
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Publication number: 20220330990Abstract: Devices and methods for bending or cutting implants are disclosed herein. In some embodiments, an instrument can convert a rotational input force (e.g., supplied by a powered driver tool) into movement of a first rod holder with respect to a second rod holder. Such movement can form a bend in a rod or other implant held by the first and second rod holders. Various mechanisms for converting this movement are disclosed, such as a worm drive mechanism and a conical gear mechanism, as are various types of rod holders, including orbiting rollers, lid-type rod holders, fixed and pivoting half-pipe rod holders, and full-pipe rod holders. In some embodiments, the instrument can also be used for cutting, for example by rotating a cutting wheel with respect to a cutting plate to cut a rod or other implant inserted through openings formed in the cutting wheel and the cutting plate.Type: ApplicationFiled: June 30, 2022Publication date: October 20, 2022Applicant: Medos International SarlInventors: Renaud Rouge, Jakub Galkowski, Thibault Chandanson
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Patent number: 11457967Abstract: Driver instruments are disclosed herein with various features for improving usability, easing the task of cleaning or sterilizing the instrument, reducing patient trauma associated with use of the instrument, and/or reducing the cost and assembly burden of the instrument. For example, a driver instrument can include a guide sleeve to protect patient tissue from damage caused by rotating components of the instrument or a bone anchor assembly coupled thereto, and to protect extension tabs of the bone anchor assembly from inadvertent separation. By way of further example, an instrument can include a preload assembly for maintaining engagement of a driver shaft of the instrument with a bone anchor assembly. As yet another example, an instrument can consist of a small number of components which are configured for simple, tool-free assembly and disassembly. An instrument can also be configured for use with bone anchor assemblies with and without extension tabs.Type: GrantFiled: August 31, 2018Date of Patent: October 4, 2022Assignee: MEDOS INTERNATIONAL SARLInventors: Thibault Chandanson, Richard W. Fournier, Shawn D. Stad, Frank Spratt, Sam Grossman, Henri Defossez, Renaud Rouge, Philip A. Cormier
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Patent number: 11399876Abstract: Devices and methods for bending or cutting implants are disclosed herein. In some embodiments, an instrument can convert a rotational input force (e.g., supplied by a powered driver tool) into movement of a first rod holder with respect to a second rod holder. Such movement can form a bend in a rod or other implant held by the first and second rod holders. Various mechanisms for converting this movement are disclosed, such as a worm drive mechanism and a conical gear mechanism, as are various types of rod holders, including orbiting rollers, lid-type rod holders, fixed and pivoting half-pipe rod holders, and full-pipe rod holders. In some embodiments, the instrument can also be used for cutting, for example by rotating a cutting wheel with respect to a cutting plate to cut a rod or other implant inserted through openings formed in the cutting wheel and the cutting plate.Type: GrantFiled: February 4, 2019Date of Patent: August 2, 2022Assignee: Medos International SarlInventors: Renaud Rouge, Jakub Galkowski, Thibault Chandanson
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Patent number: 11399902Abstract: A medical system comprising: a robotic arm, a control unit configured to issue a control signal, a medical device intended to penetrate an anatomical structure, the medical device being configured to emit a warning signal which varies as a function of a variable electrical characteristic of the anatomical structure, said medical device comprising a body with first and second electrodes, an electric generator suitable for applying at least one measurement electric current between the first and second electrodes, and a processing device suitable for determining a measurement parameter related to the electrical characteristic, based on said at least one measurement electric current, and for emitting the warning signal corresponding to the measurement parameter, wherein the control unit is configured to issue the control signal as a function of the warning signal.Type: GrantFiled: October 24, 2018Date of Patent: August 2, 2022Assignees: SpineGuard, Sorbonne Universite, INSERM (Institute National de la Sante et de la Recherche), Centre National de la Recherche Scientifique—CNRSInventors: Maurice Bourlion, Olivier Frezal, Guillaume Morel, Stéphane Bette, Thibault Chandanson, Florian Richer, Valentin Kerspern
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Publication number: 20220233250Abstract: Systems, instruments, and methods are provided verifying the surgery is being performed in accordance with a surgical plan, wherein a surgical tool having a sensor outputs a data signal that enables the trajectory of the surgical tool to be displayed as an overlay on an image of an anatomical portion of a patient and a visual or audible signal that confirms the surgical tool is penetrating the anatomical portion in accordance with the surgical plan and/or that issues an alert indicating that the surgical tool is not being inserted into the anatomical portion according to the surgical plan.Type: ApplicationFiled: April 13, 2022Publication date: July 28, 2022Applicants: SpineGuard, INSERM (Institut National de la Sante et de la Recherche Medicale, Centre National de la Recherche Scientifique - CNRSInventors: Stephane BETTE, Maurice BOURLION, Thibault CHANDANSON
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Patent number: 11344372Abstract: Systems, instruments, and methods are provided verifying that a robotic surgery is being performed in accordance with a surgical plan, wherein a surgical tool having a sensor outputs a data signal that enables the trajectory of the surgical tool to be displayed as an overlay on an image of an anatomical portion of a patient and a visual or audible signal that confirms the surgical tool is penetrating the anatomical portion in accordance with the surgical plan and/or that issues an alert indicating that the surgical tool is not being inserted into the anatomical portion according to the surgical plan.Type: GrantFiled: May 28, 2021Date of Patent: May 31, 2022Assignees: SpineGuard Vincennes, Sorbonne Universite, INSERM (Institute National de la Sante et de la Recherche, Centre National de la Recherche Scientifique—CNRSInventors: Maurice Bourlion, Olivier Frezal, Guillaume Morel, Stephane Bette, Thibault Chandanson, Florian Richer, Valentin Kerspern
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Patent number: 11311318Abstract: Various exemplary methods and devices are provided for fixing bone anchors to bone. In general, the methods and devices can allow for a bone anchor to be fixed to a bone at a desired angle to a receiver member. In an exemplary embodiment, a bone anchor assembly is provided that includes a bone anchor configured to engage bone, a receiver member that seats a spherical head of the bone anchor and a spinal fixation element, a compression member seated within the receiver member, proximally of the head of the bone anchor, and a closure mechanism seated within the receiver member, proximally of the compression member. One or more of the receiver member, the compression member, and the closure mechanism can have gripping features thereon configured to secure the bone anchor and/or the spinal fixation element within the receiver member, thereby reducing a risk of slippage of the bone anchor and/or the spinal fixation element with respect to the receiver member.Type: GrantFiled: June 25, 2019Date of Patent: April 26, 2022Assignee: DePuy Synthes Products, Inc.Inventors: Frank Spratt, Philip A. Cormier, Ernest Quintanilha, Sara Dziedzic, Nicholas Pavento, Derek Shaw, Thibault Chandanson
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Publication number: 20220071666Abstract: A cannulated bone anchor assembly includes a bone anchor, a receiver member for receiving a spinal fixation element to be coupled to the bone anchor, and a closure mechanism to fix the spinal fixation element with respect to the receiver member. The bone anchor includes a distal shaft having a first threaded section distal to a proximal head, a second threaded section distal to and adjacent the first threaded section, and a third threaded section distal to and adjacent the second threaded section. The first threaded section having a constant major and minor diameter. The second threaded section having a tapering major and minor diameter. The third threaded section having a tapering major diameter and a constant minor diameter.Type: ApplicationFiled: November 15, 2021Publication date: March 10, 2022Applicant: MEDOS INTERNATIONAL SARLInventors: Philip Cormier, Frank Spratt, Richard W. Fournier, Sara Root, Thibault Chandanson
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Patent number: 11202659Abstract: A cannulated bone anchor assembly includes a bone anchor, a receiver member for receiving a spinal fixation element to be coupled to the bone anchor, and a closure mechanism to fix the spinal fixation element with respect to the receiver member. The bone anchor includes a distal shaft having a first threaded section distal to a proximal head, a second threaded section distal to and adjacent the first threaded section, and a third threaded section distal to and adjacent the second threaded section. The first threaded section having a constant major and minor diameter. The second threaded section having a tapering major and minor diameter. The third threaded section having a tapering major diameter and a constant minor diameter.Type: GrantFiled: May 29, 2019Date of Patent: December 21, 2021Assignee: Medos International SarlInventors: Philip Cormier, Frank Spratt, Richard Fournier, Sara Root, Thibault Chandanson
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Publication number: 20210282862Abstract: Systems, instruments, and methods are provided verifying that a robotic surgery is being performed in accordance with a surgical plan, wherein a surgical tool having a sensor outputs a data signal that enables the trajectory of the surgical tool to be displayed as an overlay on an image of an anatomical portion of a patient and a visual or audible signal that confirms the surgical tool is penetrating the anatomical portion in accordance with the surgical plan and/or that issues an alert indicating that the surgical tool is not being inserted into the anatomical portion according to the surgical plan.Type: ApplicationFiled: May 28, 2021Publication date: September 16, 2021Applicants: SpineGuard, Sorbonne Universite, INSERM (Institut National de la Sante et de la Recherche Medicale), Centre National de la Recherche Scientifique - CNRSInventors: Maurice BOURLION, Olivier FREZAL, Guillaume MOREL, Stephane BETTE, Thibault CHANDANSON, Florian RICHER, Valentin KERSPERN
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Publication number: 20210275239Abstract: Devices and methods for bending or cutting implants are disclosed herein. In some embodiments, an instrument can include a rotatable drive shaft that urges first and second portions of a modular bending or cutting template toward one another to bend or cut an implant disposed between the template portions. A linkage assembly can be included to provide a mechanical advantage in urging the template portions toward one another. In some embodiments, an instrument can include a rotatable drive shaft that, depending on direction of rotation, pushes or pulls a first modular template portion with respect to a second modular template portion to bend an implant disposed between the template portions in one direction or another direction. In some embodiments, an instrument can include a worm drive that rotates a cutting wheel with respect to a cutting plate to cut an implant inserted through openings formed in the cutting wheel and the cutting plate.Type: ApplicationFiled: May 14, 2021Publication date: September 9, 2021Inventors: Renaud Rouge, Henri Defossez, Thibault Chandanson, Joseph Caulfield, Daniel Lyness, Zoher Bootwala, Michael O'Neil
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Publication number: 20210212730Abstract: Various exemplary methods and devices are provided for fixing bone anchors to bone. In general, the methods and devices can allow for a bone anchor to be fixed to a bone at a desired angle to a surface of the bone. In an exemplary embodiment, a bone anchor assembly is provided that includes a bone anchor configured to engage bone, a receiver member for seating a head of the bone anchor, and a compression member for securing the bone anchor at fixed angle with respect to the receiver member when the compression member is seated within the receiver member. Corresponding engagement features of the compression member and the receiver member can be engaged in a secured configuration to inhibit or prevent removal of the compression cap from the receiver member and optionally to substantially prevent longitudinal and/or rotational movement of the compression member with respect to the receiver member.Type: ApplicationFiled: March 31, 2021Publication date: July 15, 2021Applicant: Medos International SarlInventors: Thibault Chandanson, Ernest Quintanilha, Frank Spratt, Philip A. Cormier
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Patent number: 11033314Abstract: Devices and methods for bending or cutting implants are disclosed herein. In some embodiments, an instrument can include a rotatable drive shaft that urges first and second portions of a modular bending or cutting template toward one another to bend or cut an implant disposed between the template portions. A linkage assembly can be included to provide a mechanical advantage in urging the template portions toward one another. In some embodiments, an instrument can include a rotatable drive shaft that, depending on direction of rotation, pushes or pulls a first modular template portion with respect to a second modular template portion to bend an implant disposed between the template portions in one direction or another direction. In some embodiments, an instrument can include a worm drive that rotates a cutting wheel with respect to a cutting plate to cut an implant inserted through openings formed in the cutting wheel and the cutting plate.Type: GrantFiled: August 10, 2018Date of Patent: June 15, 2021Assignee: Medos International SàrlInventors: Renaud Rouge, Henri Defossez, Thibault Chandanson, Joseph Caulfield, Daniel Lyness, Zoher Bootwala, Michael O'Neil
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Patent number: 10987138Abstract: Various exemplary methods and devices are provided for fixing bone anchors to bone. In general, the methods and devices can allow for a bone anchor to be fixed to a bone at a desired angle to a surface of the bone. In an exemplary embodiment, a bone anchor assembly is provided that includes a bone anchor configured to engage bone, a receiver member for seating a head of the bone anchor, and a compression member for securing the bone anchor at fixed angle with respect to the receiver member when the compression member is seated within the receiver member. Corresponding engagement features of the compression member and the receiver member can be engaged in a secured configuration to inhibit or prevent removal of the compression cap from the receiver member and optionally to substantially prevent longitudinal and/or rotational movement of the compression member with respect to the receiver member.Type: GrantFiled: May 3, 2019Date of Patent: April 27, 2021Assignee: Medos International SariInventors: Thibault Chandanson, Ernest Quintanilha, Frank Spratt, Philip A. Cormier
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Publication number: 20200324408Abstract: A medical system comprising: a robotic arm, a control unit configured to issue a control signal, a medical device intended to penetrate an anatomical structure, the medical device being configured to emit a warning signal which varies as a function of a variable electrical characteristic of the anatomical structure, said medical device comprising a body with first and second electrodes, an electric generator suitable for applying at least one measurement electric current between the first and second electrodes, and a processing device suitable for determining a measurement parameter related to the electrical characteristic, based on said at least one measurement electric current, and for emitting the warning signal corresponding to the measurement parameter, wherein the control unit is configured to issue the control signal as a function of the warning signal.Type: ApplicationFiled: October 24, 2018Publication date: October 15, 2020Applicants: SPINEGUARD, SORBONNE UNIVERSITE, INSERM (Institut National de la Santé et de la Recherche Médicale), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS -Inventors: Maurice BOURLION, Olivier FREZAL, Guillaume MOREL, Stéphans BETTE, Thibault CHANDANSON, Florian RICHER, Valentin KERSPERN